Filtering apparatus.



No. 647,780. Patented Apr. I7, |900.

W W WILSON FILTERING APPARATUS.

(Application led Sept. 22, 1899.)

2 sheets-sheet 1.

(No Model.)

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Nn. 047,730. Patented Apr. |7, |900. w. w. w|Ls0N.

FILTERING APPARATUS.

(Appximion mea sept. 22, 1899.) I (N0 Model.) 2 Sheets-Sheet 2.

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UNITED STATES PATENT FFICE.

WILLIAM w. WILSON, or I-IoLYoKn, MASSACHUSETTS.

FILTERING APPARATUS.

SPECIFICATION forming part of Letters Patent o. 647,780, dated April 17, 1900.

Application led` September 22, 1899. Serial No. 731,264. (No model.)

To all whom it may concern-.-

Be it known that l, WILLIAM W. WILSON, a citizen of the United States of America, and a resident of Holyoke, in the county of Ham p'- den andState of Massachusetts, have invented certain new and useful Improvements in Filtering Apparatus, of which theffollowing is a full, clear, and exact description.

This invention relates to improvements in a iiltering apparatus or system more especially designed for the filtration of Water in large quantities to be rendered available in the manufacture of paper or otherwise where a large quantity of water devoid of foreign matter is required.

One object of this invention is to provide a iiltering apparatus which is of a comparatively simple and inexpensive construction and yet of the highest efficiencyin its waterpurifying action; and'another object of the invention is to produce, in the filtering apparatus, improved arrangements for the washing ont or cleansing of the material from which the filtering-beds are composed, which arrangements are comprised as a portion of the direct filtering means.

The invention consists in the filtering apparatus combining therein constructions and arrangements all substantially as will hereinafter be fully described, and set forth inthe`v claims.

My improved filtering apparatus is illus'- trated in the accompanying drawings, in which- Figure l is a plan view thereof, the location of an elevated tank comprised in the apparatus being indicated by dotted lines. Fig. 2 is a vertical transverse section of the filtering apparatus as taken on the line 2 2, Fig. l, the elevated tank located at about the plane of section being shown in elevation. Fig. 3 is a vertical section as taken on the line 3 3, Fig. l. Fig. 4 is a vertical sectional view, on a larger scale, provided for the purposeof showing more clearly certain portions of the apparatus.

In Vthe drawings, A represents a long reservoir or canal arranged in common to and alongside of the several filtering-beds B B.

As shown, there are series of the iilteringf beds B, arranged at the opposite sides of the canal A, the Water-level a in the canal being Y above the water-level over the filtering-beds,

the said central body having constructedl therein below the canal A'the longitudinallyextending receiverv D, below which, also con# structed in the said part C of the apparatus, is the receptacle, sewer, or conduit E for the wash-Water or waste. The top of the receiver D (shown as extending above the bottom of the filter-bed receptacles and the bottom of the receiver) is essentially considerably beL low such bottom.

d represents an inlet or supply pipe for conveying water ultimately to the canal A either -by being first entered into the well e at the end of the filter, which well at its upper portion overflows the somewhat-depressed end wall of the canal thereinto, or the supply-pipe may lead directly into the canal. The opposite side walls of the canal, which separate the latter from the inner portions of the filter-bed tanks, have the conduits f f leading from the canal respectively for delivery into said tanks, these conduits being provided with ball-cocks or float-valves, the floats and lever-arms of which are indicated at f2, whereby-a uniform water-level lower than the level of the supplyingcanalmay be maintained over all 4of the filter-bed. n

, Provided in each lter-tank is an upright pipe or hydrant G, the internal construction of which is substan tially illustrated in the sectional view, Fig. 4. This upright pipe or hydrant comprises or has connected thereto the chambered section g at its upper portion, next below which is the valve-seat g', at which the valve g is provided and which when closed shuts o communication of the passage of liquid entered into the upper section downwardly into and through theupright pipe. The hydranthas at its lower portion, adjacent the bottom of the filter-tank, thechambered sec- IOO valve-seat h and to yclose :upon kwhichv the t valve h ris provided, said valve hbeing pro-v tionh, inthe lower portion of which'is the vided upon the same rod or valve-stem h3 as the valve g. The valve-stem is guided in part `through the spider h4 in the elbow-coupling z', which is secured to the lower end of vthe cas-- ing-sectionl, and at its upper extremity it is guided through the aperturedtop cap g4 of the casing-section g2. f The upper extremity ofthe valve-stem, which protrudes upwardly --above thetop of the hyd-rant, receives there- 1 upon the hand-nut j, the turning of which in .l the proper direction insures at once the clos-l v ing of the valve g and the upwardly-opening movement of the valve h above and awayfr'om its seat, vwhile the turning Vof the nut inl ythe reverse direction. permits or insures the low-- e'ringof the valve-stem andthe valve thereon, whereby the upper'one may be'opened and the lower one closed. The pipe-section i2, coupled at thelower end of the hydrant, leads into.

the receiving-receptacle D. in represents a collector-trunk tube whic by its oneend isjconnected into the casingor coupling-section h2 near the lower end of the hydrant, the same being disposed upon or lin part'embedded within the composition which forms thebottomvof the iilter-tank, 4and this horizontal collector-trunk is 4provided'wit'h a plurality of collector branchtubes m2 each j of which has a multiplicity of -upstanding colthe tops of -which are below the outer edge system.` Y

lectors m3 which latter com risinO sandvalves, may be of any suitable or 'approved construction,that description of collector -de-v scribed andclaimed in my patent of May24, 1898, No. 604,573, being susceptible of ad# vantageous use in this nlteringapparatusor The filter-tanks havetherein abodyl'of suf# iiciently-deep filtering material or combina` tions of materials, usuallyyof a granular character, and not necessary to herein describe,

the tanks being filled with thisr material'from i the bottom part way upto the topV of each, as required, leaving a space thereabove for the water Vto be Iiltered received frornithe canal.

' A lpipe-section a enters the upper portion of each hydrant Gr'aborve the valve g therein, the several sections for the respective :hydrants in the series of filter-beds at one side of the canal havi-ng connection with-the longitudinal1y-ranging pipe o, which pipe has by conduit o2 connection with lthe elevatedreceptacle H. Y i

. J represents a pump connected with the re,- ceiving chamber or receptacle D for filtered water and delivering thesame'intothe tank H above the filterbed,which tank may be the vreservoir forsupplying the mill or. other establishment for which the apparatus ispro- `vided and which also provides laV clean supply out thev iilter-beds, as

The filter-beds are divided or separated the one from the other by the-partition-walls M `der the canal.`

wallsp of all thefllter-beds. These partitions' M iat their tops are 'channeled or of trough form, as shown at s, to receive the wash-water overtlowingfrom above the beds thereinto and by the conduits t conveying the same downwardly into thesewer E.

The operation ofthe apparatus for filtering is asl follows: The lower valve hin each hydrant being raised and opened and the upper valve .g being raised toits closed .position and a suitable supplygof watento be filtered de-- livered' into the common canalA, the water thence passes through ythe conduits f, having `the ball-cocks, onto Lthe filtering-beds, and filtering through the latter and becoming puried thereby is taken through the collectors and collector branch and collector y :trunk tubesinto the lower .portion .of thehydrant, passingv therefroml through e the hydrant terminal section into thereceiverD directly un- After `use of the filtering apparatus for suchlength of time thatthe beds become foul or laden with impurities th'e filterbeds may be most readily and-effectively v cleansed lby closing the'va-l've hin each ofthe hydrantsG and opening each of the valves kg and permitting the Y passage vdownwardly throughall vof the hydrants ofa sufficient quantity of washing-water under 'a proper head or pressure,` the same being distributed through and issuing yfrom all of the multiplicity of collectors `andV being forced upwardly through the material composing the filter-beds and overflowing into the channels s in the partitions M, carrying therewith the impurities through''thetconduits t t into the sewerE under both the `-canal and the filteredlwater-'receiving chamber. i

Hav-ing thus described my invention,- what I claim, and desire to secureby Letters Paten,tis Y .v i A Y 1. In a filtering apparatus,-av structure coinprising a supply-canal, and thereunder a iiltered-water-receivingchamber, several filtering'-receptaclesarrangedsomewhatlower than 4thesupply-canal which is in common thereto,

fthe tanks from thefcanal, a receiver below and common to the severalA tanks, collectingcon duits for conveyingjthe filtered water from the tanks to the receiver, a common waste sewerl or receptacle also below the-tanks, means `for carrying an upward current through the iltering material to overiiow the ilterftanks, troughs in the partitions between the tanks into which the wash-water overflows, and conduits leadingfrom said troughs to saidssewer.- i v Y v 3. Several tanks-having ltering material therein, Vand havingV separating# partitions IOO IIO

which are formed at their tops with troughs, and a structure alongside and in common to the several filter-tanks which comprises the canal higher than the iltering-tanks, the receiving-chamber thereunder, lower than the filtering-tanks, and therebelow the waste-receptacle, conduits leading from the canal to the lter-tanks, collector-conduits for conveying the filtered water received from the tanks to said receiving-chamber, and conduits leading from the partition-troughs to the waste-sewer.

4. In combination, a filtering-bed, an upright pipe or hydrant therein, a chamber or receptacle for filtered water below the filterbeds and into which a continuation of said hydrant leads, a collector-tube having a connection with a lower portion of the hydrant, and a'valve in the latter between the junction therewith of the collector-tube and its lower delivery extremity, a conduit for washwater leading into an upper portion of the hydrant, and means for opening and closing the aforesaid valve, substantially as and for the purposes set forth.

5. In combination, a filtering-bed, an upright pipe or hydrant therein, a chamber or receptacle for filtered water below the filterbeds and into which a continuation of said hydrant leads, a collector-tube having a connection with a lower portion of the hydrant, and a valve inthe latter between the junction therewith of the collector-tube and its lower delivery extremity, a conduit for washwater leading into an upper portion of the hydrant, a valve in an upper part of the hydrant, below the connection therewith of said wash-water conduit, carried on the same stem as the rst-named valve and arranged the one to be closed when the other is opened, and vice versa, and means for operating said valve-stem.

6. In combination, several filteringbeds, with separating-partitions with trough-tops,

an upright pipe or hydrant in each bed, a chamber or receptacle for filtered water below the iilter-beds and into which a continuation of each of said hydrants leads, the sewer E downwardly leading to which from said partition top troughs are the conduits t t, collector-tubes having connection with the lower portion of said hydrants, and a'valve in each of the latter between the junction therewith of the collector-tube and its lower delivery extremity, a conduit for wash-water leading into the upper portions of the hydrants, and means for opening and closing the aforesaid valves, substantially as and for the purposes set forth.

7. In combination, several filtering-beds, with separating-partitions with trough-tops, an upright pipe or hydrant in each bed, the canal A, a chamber or receptacle D for filtered water thereunder and into which a continuation of each of said hydrants leads, the sewer E below receptacle D downwardly leading to which from said partition top troughs are the conduits t, collector-tubes within the filter-beds, having connection with the lower portion of said hydrants, and a valve in each of the latter, between the junction therewith of the collector-tube and its lower delivery extremity, a tank located above the,

ilteringbeds, a pump for forcing water from the receptacle D thereinto, a conduit running frorn said tank having branches leading into the upper portions of the hydrants, a valve in each hydrantl adjacent the said branch which enters same, and means for opening the one and closing the other of said valves simultaneously, substantially as and for the purposes set forth.

Signed by me at Springfield, Massachusetts, this 18th day-of September, 1899. l

WILLIAM W. WILSON.y Witnesses:

WM. S. BELLows, M. A. CAMPBELL. 

